Lock for fire-arms



(No Model.)

S. FOREHAND, LOCK FOR FIRE ARMS;

No. 245,620. I Patented Aug. 16,1881.

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UNITED STATES PATENT QFFICE.

SULLIVAN FOREHAND, OF WORCESTER, MASSACHUSETTS.

LOCK FOR FIRE-ARMS.

SPECIFICATION forming part of Letters Patent No. 245,620, dated August16, 1881.

Application filed March 30, 1881. (No model.)

To all whom it may concern Be it known that I, SULLIVAN FOREHAND, of thecity and county of Worcester, and Commonwealth of Massachusetts, haveinvented certain new and useful Improvements in AutomaticallyHalf-Cooking Fire-Arms; and I do hereby declare that the following is afull, clear, and exact description of the same, reference being had tothe accompanying drawings, forming a part of this specification, and inwhich- Figure 1 represents a side view of so much of a fire-arm as isnecessary to illustrate my present invention, as will be hereinaftermore fully described, anti Fig. 2 represents a bottom view of certainparts shown in Fig. 1; and Fig. 3 represents, upon an enlarged scale, aside and sectional view of certain parts shown in Figs. 1 and 2, as willbe hereinafter more fully described.

To enable those skilled in the art to which my invention belongs to makeand use the same, I will proceed to describe it more in detail.

The nature of my invention consists in the combination of certain partsin a new and useful manner, whereby the hammer will be antomatically setat half-cock immediately after the arm has been fired,and that, too,in amanner more simple in operation than by the other modes in use prior tomy said invention. In the drawings the part of the arm is shown whichsupports the breech of the barrel, also the lock, one side of the casingbeing removed to show the lock and the working of my said improvement,which is combined therewith.

In the drawings, the part marked A is the hammer, which is combined withor fastened to the outer projecting end, a, of thejournalpiece B, towhich is fastened the tumbler part G, having on its front end twonotches, b and 0, into which the upper end, 01, of trigger D catches.When the hammer is drawn back it is shown in catch b, and the hammerstands at half-cock and lifted off of the upper end of the firing-pin E,and this is the position the hammer will assume after each tiring. Thisresult is obtained by means of the combination of spring h with thetumbler G, as follows:

A stirrup, f, is hooked upon the rear grooved end of the tumbler G, andalso hooked upon the frontend, g, of the mainspring F. Bearing againstthe lower end of stirrup f is the free and rear end of the spring h, thefront end being fastened by a pin, 1, in a groove, 2, in

the lower side of the tumbler O, as fully indicated in Fig. 2, whichshows a bottom view of the tumbler O and spring h and stirrup f, theparts being shown detached from the other parts of the arm.

From the foregoing description it will be seen that when the hammer isdrawn back, so that the upper end, (I, of trigger D falls into thecocking-notch c, the front end of mainspring F will be depressed, andthat when the trigger is drawn back to fire the arm said mainspringflies up, thereby throwing hammer A forward upon the tiring-pin E, whichis forced down against the base of the cartridge and fulminate containedtherein, and explodes the same. As soon as the upper end of stirrup fstrikes the stop-piece m the action of the rear end of spring h upon theresisting bottom of the stirrup f causes the front end of the tumbler Oto reactand move up, thereby carrying hammer A back, so that when thefinger is taken off of the trigger its front end, cl, will he forced bythe end e of spring 1 into the half-cock notch b, 'as fully shown inFig. 1, and in which position the parts will be retained until changedfor the purpose of firing the arm again. Spring 1 raises the firingpin.

My said improvement is simple, not liable to get out of order, and,besides, is sure and certain in always keeping the arm at half-cock whennot in use, thereby guarding against and preventing the prematuredischarge of thearm.

What I claim as new, and desire to secure by Letters Patent, is-

The combination, with the notched tumbler O, hammer A, and stirrup f, ofspring h, attached to tumbler O, as described, andbearing on the otherend of the link to cause the rebound of the hammer, substantially as andfor the purposes set forth.

SULLIVAN FOREHAND. Witnesses:

THos. H. DODGE, EDWIN E. MOORE.

